The laser module is designed for individuals who require precision control testing. It features an adjustable function for both focus and output power, allowing for optimal customization. The fast and precise focus adjustment mechanism can easily adjust the focus distance from 10 mm to infinite in just two turns, ensuring accuracy and efficiency. The laser output power can be adjusted using a built-in precision trimmer, which ranges from 0 to 4.25±0.25mW, and remains compliant with class 3R safety regulations. This versatile tool is a must-have for medical and laboratory research, as well as physical-optic experiments, providing exceptional control and reliability.